Abstract :
In evaluating the performance of a bistatic SAR (synthetic aperture radar) system it is important to determine the regions on the ground which satisfy range and cross-range resolution requirements. The vector gradient can be used to derive these resolutions, producing equations which, in addition to providing insight into the problem, can easily be implemented in computer code. Cross-range resolution is defined in terms of Doppler and range resolution, and results from a computer code implementing the equations derived are presented. Specifically, results are given for a 1000-km-altitude circular orbit satellite transmitter and an aircraft receiver (10-km altitude, 200 m/s).<>
Keywords :
radar theory; 10 km; 1000 km; Doppler resolution; aircraft receiver; bistatic SAR resolution; circular orbit satellite transmitter; computer calculations; cross-range resolution; performance; range resolution; synthetic aperture radar; vector gradient; Bandwidth; Difference equations; Doppler radar; Doppler shift; Frequency measurement; Signal resolution; Time measurement; Transmitters; Velocity measurement;
